xref: /aosp_15_r20/external/XNNPACK/src/qs8-igemm/gen/3x16c2-minmax-rndnu-neon-mull-dup.c (revision 4bdc94577ba0e567308109d787f7fec7b531ce36) 
1 // Auto-generated file. Do not edit!
2 //   Template: src/qs8-igemm/c2-neon-mull-dup.c.in
3 //   Generator: tools/xngen
4 //
5 // Copyright 2021 Google LLC
6 //
7 // This source code is licensed under the BSD-style license found in the
8 // LICENSE file in the root directory of this source tree.
9 
10 #include <assert.h>
11 
12 #include <arm_neon.h>
13 
14 #include <xnnpack/gemm.h>
15 #include <xnnpack/math.h>
16 
xnn_qs8_igemm_minmax_rndnu_ukernel_3x16c2__neon_mull_dup(size_t mr,size_t nc,size_t kc,size_t ks,const int8_t ** restrict a,const void * restrict w,int8_t * restrict c,size_t cm_stride,size_t cn_stride,size_t a_offset,const int8_t * zero,const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS (1)])17 void xnn_qs8_igemm_minmax_rndnu_ukernel_3x16c2__neon_mull_dup(
18     size_t mr,
19     size_t nc,
20     size_t kc,
21     size_t ks,
22     const int8_t** restrict a,
23     const void* restrict w,
24     int8_t* restrict c,
25     size_t cm_stride,
26     size_t cn_stride,
27     size_t a_offset,
28     const int8_t* zero,
29     const union xnn_qs8_conv_minmax_params params[restrict XNN_MIN_ELEMENTS(1)]) XNN_OOB_READS
30 {
31   assert(mr != 0);
32   assert(mr <= 3);
33   assert(nc != 0);
34   assert(kc != 0);
35   assert(ks != 0);
36   assert(ks % (3 * sizeof(void*)) == 0);
37   assert(a_offset % sizeof(int8_t) == 0);
38   assert(a != NULL);
39   assert(w != NULL);
40   assert(c != NULL);
41 
42   kc = round_up_po2(kc, 2 * sizeof(int8_t));
43   int8_t* c0 = c;
44   int8_t* c1 = (int8_t*) ((uintptr_t) c0 + cm_stride);
45   if XNN_UNPREDICTABLE(mr < 2) {
46     c1 = c0;
47   }
48   int8_t* c2 = (int8_t*) ((uintptr_t) c1 + cm_stride);
49   if XNN_UNPREDICTABLE(mr <= 2) {
50     c2 = c1;
51   }
52 
53   do {
54     int32x4_t vacc0x0123 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
55     int32x4_t vacc0x4567 = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
56     int32x4_t vacc0x89AB = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
57     int32x4_t vacc0xCDEF = vld1q_s32(w); w = (const void*) ((uintptr_t) w + 4 * sizeof(int32_t));
58     int32x4_t vacc1x0123 = vacc0x0123;
59     int32x4_t vacc1x4567 = vacc0x4567;
60     int32x4_t vacc1x89AB = vacc0x89AB;
61     int32x4_t vacc1xCDEF = vacc0xCDEF;
62     int32x4_t vacc2x0123 = vacc0x0123;
63     int32x4_t vacc2x4567 = vacc0x4567;
64     int32x4_t vacc2x89AB = vacc0x89AB;
65     int32x4_t vacc2xCDEF = vacc0xCDEF;
66 
67     size_t p = ks;
68     do {
69       const int8_t* restrict a0 = a[0];
70       if XNN_UNPREDICTABLE(a0 != zero) {
71         a0 = (const int8_t*) ((uintptr_t) a0 + a_offset);
72       }
73       const int8_t* restrict a1 = a[1];
74       if XNN_UNPREDICTABLE(a1 != zero) {
75         a1 = (const int8_t*) ((uintptr_t) a1 + a_offset);
76       }
77       const int8_t* restrict a2 = a[2];
78       if XNN_UNPREDICTABLE(a2 != zero) {
79         a2 = (const int8_t*) ((uintptr_t) a2 + a_offset);
80       }
81       a += 3;
82 
83       size_t k = kc;
84 
85 
86       while (k >= 8 * sizeof(int8_t)) {
87         const int8x8_t va0 = vld1_s8(a0); a0 += 8;
88         const int8x8_t va1 = vld1_s8(a1); a1 += 8;
89         const int8x8_t va2 = vld1_s8(a2); a2 += 8;
90 
91         const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
92         const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
93         const int8x8_t vb89ABc0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
94         const int8x8_t vbCDEFc0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
95         const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
96         const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
97         const int8x8_t vb89ABc1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
98         const int8x8_t vbCDEFc1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
99         const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
100         const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
101         const int8x8_t vb89ABc2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
102         const int8x8_t vbCDEFc2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
103         const int8x8_t vb0123c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
104         const int8x8_t vb4567c3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
105         const int8x8_t vb89ABc3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
106         const int8x8_t vbCDEFc3 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
107 
108         const int8x8_t va0c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0));
109         const int8x8_t va1c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0));
110         const int8x8_t va2c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0));
111 
112         const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, va0c0);
113         const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, va1c0);
114         const int16x8_t vprod2x0123c0 = vmull_s8(vb0123c0, va2c0);
115         vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
116         vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
117         vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c0);
118         const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, va0c0);
119         const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, va1c0);
120         const int16x8_t vprod2x4567c0 = vmull_s8(vb4567c0, va2c0);
121         vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
122         vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
123         vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c0);
124         const int16x8_t vprod0x89ABc0 = vmull_s8(vb89ABc0, va0c0);
125         const int16x8_t vprod1x89ABc0 = vmull_s8(vb89ABc0, va1c0);
126         const int16x8_t vprod2x89ABc0 = vmull_s8(vb89ABc0, va2c0);
127         vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc0);
128         vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc0);
129         vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc0);
130         const int16x8_t vprod0xCDEFc0 = vmull_s8(vbCDEFc0, va0c0);
131         const int16x8_t vprod1xCDEFc0 = vmull_s8(vbCDEFc0, va1c0);
132         const int16x8_t vprod2xCDEFc0 = vmull_s8(vbCDEFc0, va2c0);
133         vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc0);
134         vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc0);
135         vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc0);
136         const int8x8_t va0c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1));
137         const int8x8_t va1c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1));
138         const int8x8_t va2c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1));
139 
140         const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, va0c1);
141         const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, va1c1);
142         const int16x8_t vprod2x0123c1 = vmull_s8(vb0123c1, va2c1);
143         vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
144         vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
145         vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c1);
146         const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, va0c1);
147         const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, va1c1);
148         const int16x8_t vprod2x4567c1 = vmull_s8(vb4567c1, va2c1);
149         vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
150         vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
151         vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c1);
152         const int16x8_t vprod0x89ABc1 = vmull_s8(vb89ABc1, va0c1);
153         const int16x8_t vprod1x89ABc1 = vmull_s8(vb89ABc1, va1c1);
154         const int16x8_t vprod2x89ABc1 = vmull_s8(vb89ABc1, va2c1);
155         vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc1);
156         vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc1);
157         vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc1);
158         const int16x8_t vprod0xCDEFc1 = vmull_s8(vbCDEFc1, va0c1);
159         const int16x8_t vprod1xCDEFc1 = vmull_s8(vbCDEFc1, va1c1);
160         const int16x8_t vprod2xCDEFc1 = vmull_s8(vbCDEFc1, va2c1);
161         vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc1);
162         vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc1);
163         vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc1);
164         const int8x8_t va0c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2));
165         const int8x8_t va1c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2));
166         const int8x8_t va2c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2));
167 
168         const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, va0c2);
169         const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, va1c2);
170         const int16x8_t vprod2x0123c2 = vmull_s8(vb0123c2, va2c2);
171         vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
172         vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
173         vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c2);
174         const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, va0c2);
175         const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, va1c2);
176         const int16x8_t vprod2x4567c2 = vmull_s8(vb4567c2, va2c2);
177         vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
178         vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
179         vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c2);
180         const int16x8_t vprod0x89ABc2 = vmull_s8(vb89ABc2, va0c2);
181         const int16x8_t vprod1x89ABc2 = vmull_s8(vb89ABc2, va1c2);
182         const int16x8_t vprod2x89ABc2 = vmull_s8(vb89ABc2, va2c2);
183         vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc2);
184         vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc2);
185         vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc2);
186         const int16x8_t vprod0xCDEFc2 = vmull_s8(vbCDEFc2, va0c2);
187         const int16x8_t vprod1xCDEFc2 = vmull_s8(vbCDEFc2, va1c2);
188         const int16x8_t vprod2xCDEFc2 = vmull_s8(vbCDEFc2, va2c2);
189         vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc2);
190         vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc2);
191         vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc2);
192         const int8x8_t va0c3 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 3));
193         const int8x8_t va1c3 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 3));
194         const int8x8_t va2c3 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 3));
195 
196         const int16x8_t vprod0x0123c3 = vmull_s8(vb0123c3, va0c3);
197         const int16x8_t vprod1x0123c3 = vmull_s8(vb0123c3, va1c3);
198         const int16x8_t vprod2x0123c3 = vmull_s8(vb0123c3, va2c3);
199         vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c3);
200         vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c3);
201         vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c3);
202         const int16x8_t vprod0x4567c3 = vmull_s8(vb4567c3, va0c3);
203         const int16x8_t vprod1x4567c3 = vmull_s8(vb4567c3, va1c3);
204         const int16x8_t vprod2x4567c3 = vmull_s8(vb4567c3, va2c3);
205         vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c3);
206         vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c3);
207         vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c3);
208         const int16x8_t vprod0x89ABc3 = vmull_s8(vb89ABc3, va0c3);
209         const int16x8_t vprod1x89ABc3 = vmull_s8(vb89ABc3, va1c3);
210         const int16x8_t vprod2x89ABc3 = vmull_s8(vb89ABc3, va2c3);
211         vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc3);
212         vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc3);
213         vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc3);
214         const int16x8_t vprod0xCDEFc3 = vmull_s8(vbCDEFc3, va0c3);
215         const int16x8_t vprod1xCDEFc3 = vmull_s8(vbCDEFc3, va1c3);
216         const int16x8_t vprod2xCDEFc3 = vmull_s8(vbCDEFc3, va2c3);
217         vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc3);
218         vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc3);
219         vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc3);
220 
221         k -= 8 * sizeof(int8_t);
222       }
223 
224       if XNN_UNLIKELY(k != 0) {
225         const int8x8_t va0 = vld1_s8(a0); a0 = (const int8_t*) ((uintptr_t) a0 + k);
226         const int8x8_t va1 = vld1_s8(a1); a1 = (const int8_t*) ((uintptr_t) a1 + k);
227         const int8x8_t va2 = vld1_s8(a2); a2 = (const int8_t*) ((uintptr_t) a2 + k);
228 
229         const int8x8_t vb0123c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
230         const int8x8_t vb4567c0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
231         const int8x8_t vb89ABc0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
232         const int8x8_t vbCDEFc0 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
233 
234         const int8x8_t va0c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 0));
235         const int16x8_t vprod0x0123c0 = vmull_s8(vb0123c0, va0c0);
236         vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c0);
237         const int16x8_t vprod0x4567c0 = vmull_s8(vb4567c0, va0c0);
238         vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c0);
239         const int16x8_t vprod0x89ABc0 = vmull_s8(vb89ABc0, va0c0);
240         vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc0);
241         const int16x8_t vprod0xCDEFc0 = vmull_s8(vbCDEFc0, va0c0);
242         vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc0);
243         const int8x8_t va1c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 0));
244         const int16x8_t vprod1x0123c0 = vmull_s8(vb0123c0, va1c0);
245         vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c0);
246         const int16x8_t vprod1x4567c0 = vmull_s8(vb4567c0, va1c0);
247         vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c0);
248         const int16x8_t vprod1x89ABc0 = vmull_s8(vb89ABc0, va1c0);
249         vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc0);
250         const int16x8_t vprod1xCDEFc0 = vmull_s8(vbCDEFc0, va1c0);
251         vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc0);
252         const int8x8_t va2c0 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 0));
253         const int16x8_t vprod2x0123c0 = vmull_s8(vb0123c0, va2c0);
254         vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c0);
255         const int16x8_t vprod2x4567c0 = vmull_s8(vb4567c0, va2c0);
256         vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c0);
257         const int16x8_t vprod2x89ABc0 = vmull_s8(vb89ABc0, va2c0);
258         vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc0);
259         const int16x8_t vprod2xCDEFc0 = vmull_s8(vbCDEFc0, va2c0);
260         vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc0);
261 
262         if (k > 2 * sizeof(int8_t)) {
263           const int8x8_t vb0123c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
264           const int8x8_t vb4567c1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
265           const int8x8_t vb89ABc1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
266           const int8x8_t vbCDEFc1 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
267 
268           const int8x8_t va0c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 1));
269           const int16x8_t vprod0x0123c1 = vmull_s8(vb0123c1, va0c1);
270           vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c1);
271           const int16x8_t vprod0x4567c1 = vmull_s8(vb4567c1, va0c1);
272           vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c1);
273           const int16x8_t vprod0x89ABc1 = vmull_s8(vb89ABc1, va0c1);
274           vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc1);
275           const int16x8_t vprod0xCDEFc1 = vmull_s8(vbCDEFc1, va0c1);
276           vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc1);
277           const int8x8_t va1c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 1));
278           const int16x8_t vprod1x0123c1 = vmull_s8(vb0123c1, va1c1);
279           vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c1);
280           const int16x8_t vprod1x4567c1 = vmull_s8(vb4567c1, va1c1);
281           vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c1);
282           const int16x8_t vprod1x89ABc1 = vmull_s8(vb89ABc1, va1c1);
283           vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc1);
284           const int16x8_t vprod1xCDEFc1 = vmull_s8(vbCDEFc1, va1c1);
285           vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc1);
286           const int8x8_t va2c1 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 1));
287           const int16x8_t vprod2x0123c1 = vmull_s8(vb0123c1, va2c1);
288           vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c1);
289           const int16x8_t vprod2x4567c1 = vmull_s8(vb4567c1, va2c1);
290           vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c1);
291           const int16x8_t vprod2x89ABc1 = vmull_s8(vb89ABc1, va2c1);
292           vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc1);
293           const int16x8_t vprod2xCDEFc1 = vmull_s8(vbCDEFc1, va2c1);
294           vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc1);
295 
296           if (k > 4 * sizeof(int8_t)) {
297             const int8x8_t vb0123c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
298             const int8x8_t vb4567c2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
299             const int8x8_t vb89ABc2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
300             const int8x8_t vbCDEFc2 = vld1_s8(w); w = (const void*) ((uintptr_t) w + 8 * sizeof(int8_t));
301 
302             const int8x8_t va0c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va0), 2));
303             const int16x8_t vprod0x0123c2 = vmull_s8(vb0123c2, va0c2);
304             vacc0x0123 = vpadalq_s16(vacc0x0123, vprod0x0123c2);
305             const int16x8_t vprod0x4567c2 = vmull_s8(vb4567c2, va0c2);
306             vacc0x4567 = vpadalq_s16(vacc0x4567, vprod0x4567c2);
307             const int16x8_t vprod0x89ABc2 = vmull_s8(vb89ABc2, va0c2);
308             vacc0x89AB = vpadalq_s16(vacc0x89AB, vprod0x89ABc2);
309             const int16x8_t vprod0xCDEFc2 = vmull_s8(vbCDEFc2, va0c2);
310             vacc0xCDEF = vpadalq_s16(vacc0xCDEF, vprod0xCDEFc2);
311             const int8x8_t va1c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va1), 2));
312             const int16x8_t vprod1x0123c2 = vmull_s8(vb0123c2, va1c2);
313             vacc1x0123 = vpadalq_s16(vacc1x0123, vprod1x0123c2);
314             const int16x8_t vprod1x4567c2 = vmull_s8(vb4567c2, va1c2);
315             vacc1x4567 = vpadalq_s16(vacc1x4567, vprod1x4567c2);
316             const int16x8_t vprod1x89ABc2 = vmull_s8(vb89ABc2, va1c2);
317             vacc1x89AB = vpadalq_s16(vacc1x89AB, vprod1x89ABc2);
318             const int16x8_t vprod1xCDEFc2 = vmull_s8(vbCDEFc2, va1c2);
319             vacc1xCDEF = vpadalq_s16(vacc1xCDEF, vprod1xCDEFc2);
320             const int8x8_t va2c2 = vreinterpret_s8_s16(vdup_lane_s16(vreinterpret_s16_s8(va2), 2));
321             const int16x8_t vprod2x0123c2 = vmull_s8(vb0123c2, va2c2);
322             vacc2x0123 = vpadalq_s16(vacc2x0123, vprod2x0123c2);
323             const int16x8_t vprod2x4567c2 = vmull_s8(vb4567c2, va2c2);
324             vacc2x4567 = vpadalq_s16(vacc2x4567, vprod2x4567c2);
325             const int16x8_t vprod2x89ABc2 = vmull_s8(vb89ABc2, va2c2);
326             vacc2x89AB = vpadalq_s16(vacc2x89AB, vprod2x89ABc2);
327             const int16x8_t vprod2xCDEFc2 = vmull_s8(vbCDEFc2, va2c2);
328             vacc2xCDEF = vpadalq_s16(vacc2xCDEF, vprod2xCDEFc2);
329           }
330         }
331       }
332       p -= 3 * sizeof(void*);
333     } while (p != 0);
334 
335     const int32x4_t vright_pre_shift = vld1q_dup_s32(&params->rndnu_neon.right_pre_shift);
336     const int32x4_t vmultiplier = vld1q_dup_s32(&params->rndnu_neon.multiplier);
337     const int32x4_t vright_post_shift = vld1q_dup_s32(&params->rndnu_neon.right_post_shift);
338 
339     vacc0x0123 = vqshlq_s32(vacc0x0123, vright_pre_shift);
340     vacc0x4567 = vqshlq_s32(vacc0x4567, vright_pre_shift);
341     vacc0x89AB = vqshlq_s32(vacc0x89AB, vright_pre_shift);
342     vacc0xCDEF = vqshlq_s32(vacc0xCDEF, vright_pre_shift);
343     vacc1x0123 = vqshlq_s32(vacc1x0123, vright_pre_shift);
344     vacc1x4567 = vqshlq_s32(vacc1x4567, vright_pre_shift);
345     vacc1x89AB = vqshlq_s32(vacc1x89AB, vright_pre_shift);
346     vacc1xCDEF = vqshlq_s32(vacc1xCDEF, vright_pre_shift);
347     vacc2x0123 = vqshlq_s32(vacc2x0123, vright_pre_shift);
348     vacc2x4567 = vqshlq_s32(vacc2x4567, vright_pre_shift);
349     vacc2x89AB = vqshlq_s32(vacc2x89AB, vright_pre_shift);
350     vacc2xCDEF = vqshlq_s32(vacc2xCDEF, vright_pre_shift);
351 
352     vacc0x0123 = vqdmulhq_s32(vacc0x0123, vmultiplier);
353     vacc0x4567 = vqdmulhq_s32(vacc0x4567, vmultiplier);
354     vacc0x89AB = vqdmulhq_s32(vacc0x89AB, vmultiplier);
355     vacc0xCDEF = vqdmulhq_s32(vacc0xCDEF, vmultiplier);
356     vacc1x0123 = vqdmulhq_s32(vacc1x0123, vmultiplier);
357     vacc1x4567 = vqdmulhq_s32(vacc1x4567, vmultiplier);
358     vacc1x89AB = vqdmulhq_s32(vacc1x89AB, vmultiplier);
359     vacc1xCDEF = vqdmulhq_s32(vacc1xCDEF, vmultiplier);
360     vacc2x0123 = vqdmulhq_s32(vacc2x0123, vmultiplier);
361     vacc2x4567 = vqdmulhq_s32(vacc2x4567, vmultiplier);
362     vacc2x89AB = vqdmulhq_s32(vacc2x89AB, vmultiplier);
363     vacc2xCDEF = vqdmulhq_s32(vacc2xCDEF, vmultiplier);
364 
365     vacc0x0123 = vrshlq_s32(vacc0x0123, vright_post_shift);
366     vacc0x4567 = vrshlq_s32(vacc0x4567, vright_post_shift);
367     vacc0x89AB = vrshlq_s32(vacc0x89AB, vright_post_shift);
368     vacc0xCDEF = vrshlq_s32(vacc0xCDEF, vright_post_shift);
369     vacc1x0123 = vrshlq_s32(vacc1x0123, vright_post_shift);
370     vacc1x4567 = vrshlq_s32(vacc1x4567, vright_post_shift);
371     vacc1x89AB = vrshlq_s32(vacc1x89AB, vright_post_shift);
372     vacc1xCDEF = vrshlq_s32(vacc1xCDEF, vright_post_shift);
373     vacc2x0123 = vrshlq_s32(vacc2x0123, vright_post_shift);
374     vacc2x4567 = vrshlq_s32(vacc2x4567, vright_post_shift);
375     vacc2x89AB = vrshlq_s32(vacc2x89AB, vright_post_shift);
376     vacc2xCDEF = vrshlq_s32(vacc2xCDEF, vright_post_shift);
377 
378     const int16x8_t voutput_zero_point = vld1q_dup_s16(&params->rndnu_neon.output_zero_point);
379 #if XNN_ARCH_ARM64
380     int16x8_t vacc0x01234567 = vqmovn_high_s32(vqmovn_s32(vacc0x0123), vacc0x4567);
381     int16x8_t vacc0x89ABCDEF = vqmovn_high_s32(vqmovn_s32(vacc0x89AB), vacc0xCDEF);
382     int16x8_t vacc1x01234567 = vqmovn_high_s32(vqmovn_s32(vacc1x0123), vacc1x4567);
383     int16x8_t vacc1x89ABCDEF = vqmovn_high_s32(vqmovn_s32(vacc1x89AB), vacc1xCDEF);
384     int16x8_t vacc2x01234567 = vqmovn_high_s32(vqmovn_s32(vacc2x0123), vacc2x4567);
385     int16x8_t vacc2x89ABCDEF = vqmovn_high_s32(vqmovn_s32(vacc2x89AB), vacc2xCDEF);
386 
387     vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
388     vacc0x89ABCDEF = vqaddq_s16(vacc0x89ABCDEF, voutput_zero_point);
389     vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
390     vacc1x89ABCDEF = vqaddq_s16(vacc1x89ABCDEF, voutput_zero_point);
391     vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
392     vacc2x89ABCDEF = vqaddq_s16(vacc2x89ABCDEF, voutput_zero_point);
393 
394     int8x16_t vout0x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc0x01234567), vacc0x89ABCDEF);
395     int8x16_t vout1x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc1x01234567), vacc1x89ABCDEF);
396     int8x16_t vout2x0123456789ABCDEF = vqmovn_high_s16(vqmovn_s16(vacc2x01234567), vacc2x89ABCDEF);
397 #else
398     int16x8_t vacc0x01234567 = vcombine_s16(vqmovn_s32(vacc0x0123), vqmovn_s32(vacc0x4567));
399     int16x8_t vacc0x89ABCDEF = vcombine_s16(vqmovn_s32(vacc0x89AB), vqmovn_s32(vacc0xCDEF));
400     int16x8_t vacc1x01234567 = vcombine_s16(vqmovn_s32(vacc1x0123), vqmovn_s32(vacc1x4567));
401     int16x8_t vacc1x89ABCDEF = vcombine_s16(vqmovn_s32(vacc1x89AB), vqmovn_s32(vacc1xCDEF));
402     int16x8_t vacc2x01234567 = vcombine_s16(vqmovn_s32(vacc2x0123), vqmovn_s32(vacc2x4567));
403     int16x8_t vacc2x89ABCDEF = vcombine_s16(vqmovn_s32(vacc2x89AB), vqmovn_s32(vacc2xCDEF));
404 
405     vacc0x01234567 = vqaddq_s16(vacc0x01234567, voutput_zero_point);
406     vacc0x89ABCDEF = vqaddq_s16(vacc0x89ABCDEF, voutput_zero_point);
407     vacc1x01234567 = vqaddq_s16(vacc1x01234567, voutput_zero_point);
408     vacc1x89ABCDEF = vqaddq_s16(vacc1x89ABCDEF, voutput_zero_point);
409     vacc2x01234567 = vqaddq_s16(vacc2x01234567, voutput_zero_point);
410     vacc2x89ABCDEF = vqaddq_s16(vacc2x89ABCDEF, voutput_zero_point);
411 
412     int8x16_t vout0x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc0x01234567), vqmovn_s16(vacc0x89ABCDEF));
413     int8x16_t vout1x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc1x01234567), vqmovn_s16(vacc1x89ABCDEF));
414     int8x16_t vout2x0123456789ABCDEF = vcombine_s8(vqmovn_s16(vacc2x01234567), vqmovn_s16(vacc2x89ABCDEF));
415 #endif
416 
417     const int8x16_t voutput_min = vld1q_dup_s8(&params->rndnu_neon.output_min);
418     vout0x0123456789ABCDEF = vmaxq_s8(vout0x0123456789ABCDEF, voutput_min);
419     vout1x0123456789ABCDEF = vmaxq_s8(vout1x0123456789ABCDEF, voutput_min);
420     vout2x0123456789ABCDEF = vmaxq_s8(vout2x0123456789ABCDEF, voutput_min);
421 
422     const int8x16_t voutput_max = vld1q_dup_s8(&params->rndnu_neon.output_max);
423     vout0x0123456789ABCDEF = vminq_s8(vout0x0123456789ABCDEF, voutput_max);
424     vout1x0123456789ABCDEF = vminq_s8(vout1x0123456789ABCDEF, voutput_max);
425     vout2x0123456789ABCDEF = vminq_s8(vout2x0123456789ABCDEF, voutput_max);
426 
427     if (nc >= 16) {
428       vst1q_s8(c2 + 0, vout2x0123456789ABCDEF);
429       vst1q_s8(c1 + 0, vout1x0123456789ABCDEF);
430       vst1q_s8(c0 + 0, vout0x0123456789ABCDEF);
431 
432       c2 = (int8_t*) ((uintptr_t) c2 + cn_stride);
433       c1 = (int8_t*) ((uintptr_t) c1 + cn_stride);
434       c0 = (int8_t*) ((uintptr_t) c0 + cn_stride);
435 
436       a = (const int8_t**restrict) ((uintptr_t) a - ks);
437 
438       nc -= 16;
439     } else {
440       int8x8_t vout2x01234567 = vget_low_s8(vout2x0123456789ABCDEF);
441       int8x16_t vout0x01234567_1x01234567 = vcombine_s8(vget_low_s8(vout0x0123456789ABCDEF), vget_low_s8(vout1x0123456789ABCDEF));
442       if (nc & 8) {
443         vst1_s8(c2, vout2x01234567); c2 += 8;
444         vst1_s8(c1, vget_high_s8(vout0x01234567_1x01234567)); c1 += 8;
445         vst1_s8(c0, vget_low_s8(vout0x01234567_1x01234567)); c0 += 8;
446         vout2x01234567 = vget_high_s8(vout2x0123456789ABCDEF);
447         vout0x01234567_1x01234567 = vcombine_s8(vget_high_s8(vout0x0123456789ABCDEF), vget_high_s8(vout1x0123456789ABCDEF));
448       }
449       if (nc & 4) {
450         vst1_lane_u32((void*) c2, vreinterpret_u32_s8(vout2x01234567), 0); c2 += 4;
451         vst1q_lane_u32((void*) c1, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 2); c1 += 4;
452         vst1q_lane_u32((void*) c0, vreinterpretq_u32_s8(vout0x01234567_1x01234567), 0); c0 += 4;
453         vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 4);
454         vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 4);
455       }
456       if (nc & 2) {
457         vst1_lane_u16((void*) c2, vreinterpret_u16_s8(vout2x01234567), 0); c2 += 2;
458         vst1q_lane_u16((void*) c1, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 4); c1 += 2;
459         vst1q_lane_u16((void*) c0, vreinterpretq_u16_s8(vout0x01234567_1x01234567), 0); c0 += 2;
460         vout2x01234567 = vext_s8(vout2x01234567, vout2x01234567, 2);
461         vout0x01234567_1x01234567 = vextq_s8(vout0x01234567_1x01234567, vout0x01234567_1x01234567, 2);
462       }
463       if (nc & 1) {
464         vst1_lane_s8(c2, vout2x01234567, 0);
465         vst1q_lane_s8(c1, vout0x01234567_1x01234567, 8);
466         vst1q_lane_s8(c0, vout0x01234567_1x01234567, 0);
467       }
468 
469       nc = 0;
470     }
471   } while (nc != 0);
472 }
473